The Streamlight ProTac 90X USB flashlight produces 1000 lumens and can operate using a proprietary Streamlight USB Li-Ion rechargeable battery or two CR123A disposable batteries. This flashlight includes a charging cord and a USB Li-Ion button top battery with an integrated micro-USB charge port. The tactical switch allows for momentary or constant on operation and offers three user-selectable programs. Constructed from durable aluminum with Type II Military Spec anodizing, it is abrasion-resistant and built for longevity. The ProTac 90X USB also comes with a removable pocket clip and holster for added convenience.